Hydralic Oil Question
- Thread starter SevenCorners
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ToolManRick
Silver Member
</font><font color="blue" class="small">( A question about the differences between the nortrac and the other variants of the jinma.)</font>
This sort of sparked an interest I have. The Nortrac manuals for my 204C are not bad, but have conflicting maintenance schedules in different parts of the manual. SO, I'm in the process of working up a spreadsheet with what they recommend. I'll post it, probably in it's own topic as a spreadsheet and a .pdf file.
This sort of sparked an interest I have. The Nortrac manuals for my 204C are not bad, but have conflicting maintenance schedules in different parts of the manual. SO, I'm in the process of working up a spreadsheet with what they recommend. I'll post it, probably in it's own topic as a spreadsheet and a .pdf file.
ToolManRick
Silver Member
I grease mine less too, but some common sense leads to when I do grease certain points. For instance if I'm chipping wood for 10 hours I don't grease the front end loader. However I would keep an eye on the PTO for any leakage and check the tranny level.
Nortrac recommends 30W (below 50 degrees) and 40W (above 50 degrees) for the tranny. They don't specifically say gear or engine oil. Since I've spent many years wrenching on cars, trucks and forklifts I will be putting a non-foaming gear oil in mine when the time comes.
Nortrac recommends 30W (below 50 degrees) and 40W (above 50 degrees) for the tranny. They don't specifically say gear or engine oil. Since I've spent many years wrenching on cars, trucks and forklifts I will be putting a non-foaming gear oil in mine when the time comes.
Rick,,you are right the manual does not say gear oil or motor oil,,it just says 30 weight/40 weight,,,which means just that. I have called northern on this at least twice,,,they say to use nondetergent motor oil not gear oil,,,call them yourself. Will it hurt or help to use one or other?,beats me,thats why I called them,figured it might be a seal thing or something else more secret,,,no. I would say in trans,,,40 weight would work as good or better than gear oil,,,now in front end,,not sure,,,in any case,I'm useing 40 weight non detergent oil in both,,,have over 300 hrs now,so motor oil will work for 300 hrs...Do use aw 32 in hydro system,always have,,,as far as grease,I get the good stuff,[as far as price anyways],and grease everthing about 3 times a year,been putting about 150 hours a year last two years,so every 50 hrs or so,ready to grease it now and change oil and filter, thingy
Soundguy
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30 and 40 wt motor oils are not unheard of for tranny use.
some of the big cat equipment uses 30 and 40w motor oil in the trannyies.
Soundguy
some of the big cat equipment uses 30 and 40w motor oil in the trannyies.
Soundguy
OP
SevenCorners
Silver Member
From my expericence the 80w90 oil sure did quite down a very loud transmission. No more gear whine.
Mine doesn't whine,I run creeper in low and other one in high,for most things,,now if I run creeper in high and other one in low it whines,,so I bet its not all due to oil kind,,don't know if thats the recommended way,[if there is one],,just found out that while looking for right gears to brush hog in,,works pretty good for that,2nd and 3rd,,now I put them both in low and use 2nd to till. thingy
greg_g
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</font><font color="blue" class="small">( Mine doesn't whine)</font>
That's the 40W oil Richard. You probably forgot, but I posted about the viscosity equivalency ratings several months ago. One example I gave was that 80W90 gear oil has a viscosity equivalent to 20W40 motor oil. Check the chart below, your 40W engine oil would be about the same viscosity as 90W gear oil.
CHART HERE
//greg//
That's the 40W oil Richard. You probably forgot, but I posted about the viscosity equivalency ratings several months ago. One example I gave was that 80W90 gear oil has a viscosity equivalent to 20W40 motor oil. Check the chart below, your 40W engine oil would be about the same viscosity as 90W gear oil.
CHART HERE
//greg//
No,I remember that chart,,learned some from it,thanks again greg,for posting that,you be alright. And no,its just not the 40 weight oil,,I just put 40 weight in it this spring,,it had 30 weight last spring,and it didn't whine,,in the gear configeration I said,,,creeper low/other shifter in high,,now if I do it the other way,creeper in high gear,other shifter[next to seat],in low gear,it whines,,,you would think that would be the way to run it,,maybe it is,,but it whines pretty good there,,,to many gears for me,only use about 1/2 of them,,the only time you should have to put greeper in,[in low],is plowing or tilling,you would think,,,but mines in low all the time,due to,mainly whining,,plus the combination I run works good for my terrain,cutting grass,other way is a tad to fast... thingy
greg_g
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</font><font color="blue" class="small">( you would think that would be the way to run it,,maybe it is,,but it whines pretty good there,,,,,,but mines in low all the time,due to,mainly whining )</font>
The Jinma operator's manual creeper description: to exchange the normal speed and the creeper speed. I interpret that to mean Creeper High to be "the way to run it" also Richard.
So for you to stay in Creeper Low because of a whining noise, suggests a problem in the transmission high range. I had a high range whine in my second JM254. Took a long time to get any action out of the dealer, but in the end it turned out to be a factory defective clutch pack.
I'm not saying that's your specific problem, but that excessive whining suggests there IS a problem. And by staying in Creeper Low, you're just working around it.
It's your tractor, so I guess whatever works for you - works for you. But if it was mine, I'd be finding out what's actually causing the noise - before it becomes something worse than a whine.
//greg//
The Jinma operator's manual creeper description: to exchange the normal speed and the creeper speed. I interpret that to mean Creeper High to be "the way to run it" also Richard.
So for you to stay in Creeper Low because of a whining noise, suggests a problem in the transmission high range. I had a high range whine in my second JM254. Took a long time to get any action out of the dealer, but in the end it turned out to be a factory defective clutch pack.
I'm not saying that's your specific problem, but that excessive whining suggests there IS a problem. And by staying in Creeper Low, you're just working around it.
It's your tractor, so I guess whatever works for you - works for you. But if it was mine, I'd be finding out what's actually causing the noise - before it becomes something worse than a whine.
//greg//
